2018 YJ4

NEO MOID ⇩ IMP ⇩ COV ★ EPH ⇩ OBS
Orbital Elements
Epoch (TDB)2025-11-21 (JD 2461000.5)
Eccentricity (e)0.6391219281 ± 1.14e-04
Semi-major axis (a)2.1960021930 AU ± 6.25e-04
Inclination (i)2.49766085° ± 2.09e-02
Long. of Asc. Node (Ω)279.22278715° ± 1.73e-03
Arg. of Perihelion (ω)119.33286356° ± 1.43e-02
Mean Anomaly (M)54.21839115° ± 3.29e-01
Mean Motion (n)0.3028747871°/day ± 1.29e-04
Perihelion dist (q)0.79248904 AU ± 3.37e-04
Aphelion dist (Q)3.59951535 AU ± 1.05e-03
Orbital Period3.25423682 yr ± 1.39e-03
Physical Parameters
H (abs. magnitude)29.76
G (slope)0.15
Orbit Solution
SourceIAA
Solution Date2026-06-02
RMS Residual0.423″
Uncertainty3
Orbit TypeApollo
MOID0.000575 AU
Observations Used8
Oppositions1
Arc Total2018-2018
First Observation Used2018-12-31
Last Observation Used2018-12-31
Observations (8)
Date Type RA Dec Mag Band Observatory
2018-12-31 08:51:33 C 07 47 27.55 +20 27 25.5 V G96
2018-12-31 08:59:02 C 07 47 23.56 +20 25 49.2 V G96
2018-12-31 09:11:31 C 07 47 17.04 +20 23 10.2 V G96
2018-12-31 09:19:00 C 07 47 13.16 +20 21 34.6 V G96
2018-12-31 12:30:24 C 07 45 56.51 +19 44 58.2 V G96
2018-12-31 12:30:49 C 07 45 56.41 +19 44 53.3 V G96
2018-12-31 12:31:14 C 07 45 56.20 +19 44 49.2 V G96
2018-12-31 12:31:39 C 07 45 56.16 +19 44 44.6 V G96